Scientists have tested Einstein’s theory of general relativity to new degrees of precision using the giant elliptical galaxy ESO 325-G004, the yellow ball of stars near the upper left side of this image. Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)

Topics: Astrophysics, Cosmology, Einstein, General Relativity

Astronomers have used a pair of galaxies far beyond the Milky Way to test general relativity with unprecedented precision

Three years ago astrophysicist Tom Collett set out to test a theory. Not just any theory, but one that sets scientists’ expectations for how the universe operates at large: Einstein’s general relativity. First published in 1915, the theory mathematically describes how gravity emerges from the fundamental geometry of space and time, or spacetime, as physicists call it. It postulates that dense objects, such as Earth and the sun, create valleylike dips in spacetime that manifest as gravity—the force that binds together a galaxy’s swirling stars, places planets around suns and, on Earth (or any other planet), keeps your feet on the ground.

Einstein’s equations underpin a host of real-world applications such as the global positioning satellites that make precise navigation and split-second financial transactions possible around the planet. They also elucidate several otherwise-inexplicable phenomena, including Mercury’s oddball orbit, as well as predict new ones, such as gravitational waves—ripples in spacetime that were only directly observed a century after general relativity’s debut. In test after test, whether here on Earth or in observations of the distant universe, the theory has emerged unscathed—a success so stunningly unshakeable it draws a certain breed of scientists like moths to a flame—each seeking to reveal cracks in Einstein’s edifice that could lead to the next breakthrough in physics.

Collett, a research fellow at the University of Portsmouth in England, is among them. “General relativity is so fundamental to the assumptions we make in our interpretation of cosmological and astrophysical data sets that we’d better be sure it’s right,” he says. With that mind-set, in 2015 Collett partnered with nine colleagues to perform the most sensitive experiment yet to test whether Einstein’s famed theory holds up at the scale of an entire galaxy. Their results, published June 21 in Science, reiterate Einstein’s theory still reigns supreme.

Einstein’s Greatest Theory Validated on a Galactic Scale, Maya Miller, Scientific American

Views: 27

Comment

You need to be a member of BlackScienceFictionSociety to add comments!

Join BlackScienceFictionSociety

Badge

Loading…

IMPORTANT ALERTS

ALERT! ALERT! ALERT! 

IF YOU ARE HAVING TROUBLE CHANGING YOUR PROFILE  PICTURE, SWITCH TO EITHER CHROME BROWSWER OR FIREFOX. THERE IS A KNOWN ISSUE WITH INTERNET EXPLORER THAT CAUSES TROUBLE CHANGING PICTURES.


PLEASE DO NOT SIGN IN WITH FACEBOOK IF YOU ALREADY HAVE AN ACCOUNT. YOU WILL CREATE A DUPLICATE THAT WILL NOT HAVE YOUR INFO CONNECTED. THANKS

NO SPAMMING

Please do not greet everyone on the site with large images and/or announcements of your book or business. Yes, you want to tell the world, but learn the fine art of subtlety. We have lost numerous members because of the amount of 'friend' mail they instantly receive. This Hurts Everyone.

Also, DO NOT post the same information multiple times throughout the site. It will be deleted without notice.

 

Spam is unsolicited advertising, whether it is posted as comments on other members' pages or is emailed for marketing purposes.

 

Please be considerate. Post your advertisement in the proper Articles/Forum or Group. There are inexpensive marketing channels that reach every member for just $25 on the Advertising tab. You can post your information on your profile and even update your blog as often as you like.

 

We are not into censorship, so please don't make us ask you to leave. Be kind and unselfish - don't spam.

 

Your Account Will Be Deleted Without Warning For Spam.

 

Blog Posts

Nightfall...

Posted by Reginald L. Goodwin on July 17, 2018 at 5:30am 0 Comments

AZ Quotes dot com - Joseph Pulitzer

Topics: Commentary, Existentialism, Politics

"And he called out with a mighty voice, “Fallen, fallen is Babylon the great! She has become a…
Continue

Webtoons comic Enigma

Posted by Kimberly Moseberry on July 16, 2018 at 12:00pm 0 Comments

 Hello everyone this is my first time doing a blog here. I'm usually just posting art or in the chat.

If you can please out my webtoons comic Enigma. Read, rate, like and comment on it. =) Feel free to reach out to me here and leave crits or feed-back.

https://www.webtoons.com/en/challenge/enigma/list?title_no=192783

Intellectual Property...

Posted by Reginald L. Goodwin on July 16, 2018 at 11:10am 0 Comments

Image source: Link below

Topics: Applied Physics, Commentary, Economy, Education, Einstein, Research

Did Einstein "own" Special and General Relativity, the photoelectric effect (for which the Nobel Prize was awarded); Brownian Motion or Mass-Energy equivalence? Did Richard Feynman "own" his diagrams? He's also credited for…
Continue

New Website Design. New Website Features.

Posted by Tonya R. Moore on July 13, 2018 at 7:30pm 3 Comments

Patrons can now access Patron Only content on my website. There are also tons of free stories and other webserials for everyone. Please stop by and say hi! https://tonyarmoore.com.

Freytag's Dénouement...

Posted by Reginald L. Goodwin on July 13, 2018 at 9:48am 0 Comments

Topics: Climate Change, Ecology, Existentialism, Global Warming, Octavia Butler

Under Freytag's pyramid, the plot of a story consists of five parts: exposition (originally called introduction), rising action (rise), climax, falling action (return or fall), and dénouement/resolution/revelation/catastrophe. Dramatic structure - Wikipedia

Completely unplanned but…
Continue

Max Planck Institute Bullying...

Posted by Reginald L. Goodwin on July 12, 2018 at 9:00am 0 Comments

MLA style: "The Nobel Prize in Physics 1918". Nobelprize.org. Nobel Media AB 2014. Web. 11 Jul 2018. a href="http://www.nobelprize.org/nobel_prizes/physics/laureates/1918/">http://www.nobelprize.org/nobel_prizes/physics/laureates/1918/ >

Topics: Commentary, Diversity, Diversity in Science, Existentialism, Women in Science

Max Karl Ernst Ludwig…

Continue

"Don't Leave Home Without It"...

Posted by Reginald L. Goodwin on July 11, 2018 at 9:10am 0 Comments

Lockheed Martin’s concept, called Mars Base Camp, would need a way to replenish their fuel and air supplies. Lockheed Martin

Topics: Astrophysics, Mars, NASA, Photosynthesis, Planetary Science, Space Exploration

Note: From American Express…
Continue

Bottoms Up...

Posted by Reginald L. Goodwin on July 10, 2018 at 7:34am 0 Comments

Bottoms up: physicists working on the ATLAS experiment have discovered the most common Higgs decay channel. (Courtesy: Maximilien Brice/CERN)

Topics: Modern Physics, Quantum Mechanics, Quarks

Why "Quark"?…
Continue

The Digital Brothers Multimedia

The Digital Brothers
Our goal is to provide cost effective technological solutions for home, small and big business. After over 20 years of service working in this field, we decided to utilize our talents to develop and cultivate our own vision to benefit the community.
2D & 3D Animation
Graphic & Web Design
Photo & Video
Multimedia Development
Online & Print Marketing

Contact Us Today To Assist In Your Business Success
Website: www.TheDigitalBrothers.com
Email: info@thedigitalbrothers.com

SKYCITY TALKRADIO

THE UNDERGROUND BY ROXANNE BLAND

Life as alpha of a werewolf pack is anything but predictable. But even Parker Berenson is surprised by the latest twist: he’s fallen in love with a space alien. Problem is, he suspects Melera, his sexy new flame, might be the serial killer terrorizing Seattle. Or maybe she isn’t. After all, just because she’s an interstellar assassin doesn’t mean she’s guilty.

http://blackrosepress.com/

© 2018   Created by Jarvis Sheffield - Admin.   Powered by

Badges  |  Report an Issue  |  Terms of Service